Planter box



FIG. 1 is a front side perspective view of a planter box showing our new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a right side elevation view thereof. 

CLAIM The ornamental design for a planter box, as shown and described. 